Ameritec AM-48E Communications Test Set
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Modèle:
AM-48E
Date:
1992
Catégorie:
Groupe:
Description:
Personal Transmission Test Set
Information
Definition and Purpose. In one (1) hand-held unit, the AM-48
provides the field engineer with two (2) instruments:
1.
a transmission Test Set, and
2.
a telephone "butt-set".
The transmission Test Set tests the integrity and quality of
2-wire or
4-wire voice and data transmission lines by sending selected
analog
signals and measuring standard parameters of the received
signals.
The telephone "butt set" enables the field engineer to dial
up and
speak back-and-forth with a field engineer at the far end of the
system. The compact and light-weight AM-48 eliminates the
need to
carry multiple, bulky test sets.
Functional Overview
AM-48 can send:
•
any frequency from 200 Hz to 20 kHz @ -50 to +10 dBm
•
continuous 3-tone slope (404, 1004, 2804 Hz)
•
continuous, user-defined, sweep tones
•
fixed 1004 Hz
•
P/AR waveform
•
momentary 2713 Hz for WECO 829 loopback
AM-48 can measure:
•
level, -65 to +10.9 dBm (absolute or relative)
•
frequency, 0 to 19,999 Hz
•
idle channel noise
•
noise with tone
•
three-level impulse noise
•
phase jitter
•
gain jitter
•
transients (dropouts, phase and gain hits, impulse noise)
•
signal-to-noise (S/N) ratio
•
peak-to-average ratio (P/AR)
Noise filters provided (each with optional 1010 Hz notch)::
•
C-Message (Psophometric for(AM-48E)
•
3 kHz
•
15 kHz
•
Program (Sound-weighted for(AM-48E)
Other features:
•
High impedance bridge, 600 or 900 Ohm termination
•
Display prompts help in set-up and testing sequences
•
On-board memory can store & recall up to 10 user-defined
test set-ups
•
Dials: pulse, DTMF, and MF
•
Talk/Listen capability
•
Printer Interface for hard copy of set-up and test results
•
Battery life: Alkaline, 6 to 7 hours; NiCad, 3 to 4 hours
•
NiCad batteries can be recharged without removing them
from the unit
Testing Configurations: (For details, see ¶6.6)
There are three (3) basic AM-48 configurations used to test
2-wire/4-wire telephone/data communication lines:
1.
End-to-end -- requiring two (2) AM-48 units
2.
Loopback
3.
Testing with responders
Type manuel:
Manuel de l'utilisateur
Pages:
179
Taille:
4.32 Mbytes (4526082 Bytes)
Langue:
english
Révision:
F
Manuel-ID:
18-0015
Date:
2004 04 19
Qualité:
Électronique de documents, numérisation sans, bien lisible.
Date de transfert:
2017 10 14
MD5:
101f8fe6ff9d5d2b93291d75e2be41af
Téléchargements:
1254
Information
This instruction manual describes Ameritec Corporation’s AM-48
and AM-48E Personal Transmission Test Sets.
Note:
Throughout this manual, all references to the "AM-48" also
apply to the "AM-48E", unless otherwise noted. See ¶1.4
for a summary of the differences between the AM-48 and
the AM-48E,
The other paragraphs in this Introduction section are:
1.2
General Description
1.3
AM-48 Technical Specifications
1.4
AM-48E Technical Specifications
The balance of the manual is divided into the following
sections:
2.
Receiving and Unpacking
3.
Physical and Functional Description
4.
Power Considerations
5.
Self-Test Instructions
6.
Connection and Configuration
7.
Operating Instructions
8.
Explanation and Application of Measurements
9.
Circuit Diagrams
10.
Warranty, Service, and Calibration
11.
Glossary
Index
Glossary. Refer to the Glossary to become familiar with the
terminology used in this manual.
Power. Be sure to read Section 4 and observe the WARNING in ¶4.3
before powering up the AM-48,
Self Test . Perform the Self Test in Section 5 to:
1.
confirm that all AM-48 circuits and basic functions are
working properly, and
2.
obtain "hands-on" experience with the AM-48 to learn how
the controls operate.
Transmission Measurements . Note that Section 7, Operating
Instructions, gives procedures to perform transmission
measurements.
For explanation and application of the measurements, see
Section 8.
Type manuel:
manuel de réparation
Pages:
183
Taille:
5.10 Mbytes (5350848 Bytes)
Langue:
italian
Révision:
Manuel-ID:
Date:
Qualité:
Document scanné, la lecture en partie mal, en partie illisible.
Date de transfert:
2020 10 22
MD5:
ffff3a9bdc5c59a3ba3e32f7addd3838
Téléchargements:
178